Window sash structure



Feb. 13, 1945.. Q NEELY WINDOW SASH STRUCTURE Filed DeG. 30, 1941 Patented Feb. 13, 1945 UNITED STATES o PATENT `OFFICE 2,369,402 l I y WINDQW` SASH STRUCTURE Benjamin Neely, College Park, Ga.

Application December 30, 1941, Serial No. 424,988

1 Claim.

Generically this invention relates to window structures but it is more particularly directed to an improved adjustable and easily operable window sash construction.

One ofthe principal objects of this invention isthe provision of a window sash adapted to. be self-supporting at any desired` yelevated position and automatically adjustable to effect` easy raisportion of the friction element `illustrated in ing and lowering irrespective of weather `conditions. y

An important object of this invention is the provision of inexpensive window sashes adapted to retain all of the advantages of those now in use but involving'novel features designed to render them more efficient and easier to operate regardless of weather conditions.

Another object of this invention is the provision of a window sash applicable to a standard window frame designed to remain at any desired point throughout the operating limits of the sash without the use of balances. weights or other like counteracting means.

A further object of this invention is the provision of resiliently controlled friction means carried by the sash and co-operating with the frame adapted to support the sash at any desired elevated position and to automatically compensate for variations in weather conditions to eifect easy operation of the sash.

A still further important object of this invention is the provision of resiliently controlled friction element adapted for use with orwithout sash weightsand the like, manufacturable either with the sash, or adaptable as an attachment with equal facility, to those already in use and in connection with standard window frames, said friction element being connected to the sash stile in such a manner as to eiect a slightly delayed movement thereof upon movement of the sash in opening or closing direction.

With these and other objects in view, which will become apparent as the description proceeds, the invention resides in the construction, combination and arrangement of parts, hereinafter more fully described and claimed, and illustrated in the accompanying drawing, in which like characters of reference indicate like parts throughout the several figures, of which:

Fig. 1 is a side elevation of a window showing my improved sash construction.

Fig. 2 is a vertical section through the frame and upper portion of the Tower sash taken on the line 2-2 of Fig. 3.

Fig. 3 is a horizontal section taken on the line 3-3 of Fig. 2.

Fig. 5.

I am aware that many attempts have been made to provide window constructions that would permit more or less easy operation of thesashes under varying weather conditions but those with which I am familiar have required special construction not only with reference to the sash but also rthe window frame, embodying a number of parts and not only being expensive to manufacture but entailing added expense in installation, and it was tol overcome such disadvantages lby providing an improved sash attachment comprising a particular friction element including alportion which may be either uniform or slightly Atapered for mounting in a complemental groove in the edge of the sash stile and connected thereto in such a manner as to effect a slightly delayed movement of the friction element upon the initial movement of the sash in either direction with respect to the frame, that I designed the device forming the subject matter of this invention.

In the illustrated embodiment characterizing this inventionithere is shown a window `struc- 3. Since the sashes are identical, for brevity of description, lonly the lower sash D will be described in detail.'`

Sash D comprises atop rail 9, a bottom rail I0, stiles II and I2,,and pane I3. Stile Il is formed in its edge surface` with a longitudinally extending recess or groove I4V terminating at its bottom in a, countersunk opening I5 and bolt opening I6 extending fromjsaidf vcountersunk opening through the remaining portion of the stile. One

corner` of stile II vislcut out as at Il to permit said stile to overlie bead 8 and extend to point of contact with jtheupper sash C so as to act as a protection againsttheweather and to form a i frame.

substantial weather seal with the corresponding stile II of said upper sash C, as will be well understood. The opposite edge of the stile is cut out to provide a ledge I8 on which is seated pane I3 secured therein by a molding or other retaining and sealing material I9.

The friction element or member E is formed with a tongue portion 20, parallel side walls 2| which terminate at their free ends in lateral flanges 22 constituting friction surfaces when mounted in groove 1, as will directly more fully appear. Tongue 26 is formed with an elongated opening or slot 23 spaced from each end thereof.v

The side walls 2| form within said tongue portion 20 a trough-like recess 24 adapted to receive sash weight cords and the like when mounted in a window frame so equipped so that neither the cords nor the free movement of said friction member E with respect to the frame will be interfered with. The friction element E is mounted in groove I4 and is secured therein by bolts 25 inserted through openings 23 in said tongue 20 and throughopenings I6 in stile II. In order to form a resilient and adjustable connection between said friction element E and said stile a spring 26 is mounted on each of said bolts adapted to seat in countersunk openings I5 and on tongue 20, said bolts being secured by threaded knurled nuts 21 and which nuts permit tensioning of element E with respect to the frame :lamb I, as will hereinafter more fully appear.

It will be noted that groove 2l is adapted to receive sash weight cords, coil springs or balances already in use or to be used in connection with the operation of the sash and thereby preventing their interference with the friction member 20, so that said member 26 under the action of springs 26 constantly and frictionally bears against the frame side jamb I, maintaining the sash `in any desired raised or lowered position, said springs 26 automatically compensating for the expansion or contraction of the jambs and sashes, thereby not only insuring at all times easy operation of the sash but eiecting a. weather tight connection between the sash and frame. Operation of nuts 21 effect tensioning adjustment ofthe friction member E with respect to the This construction prevents sticking of the sash and by virtue of the elongated openings 23 a slightly delayed movement of the friction member is effected, thereby allowing a slight advance movement of the sash up or down, tending to break any sticking which might initially occur between the tongue 20 and groove Il of the sash stile with a consequent easy operation of the sash under varying and difficult weather conditions.

Fig. 5 shows a slightly modied friction element E. 'Ihis form is similar to friction element E, shown in Fig. 4, except that tongue 20 is substantially wedge shaped, that is, one end ,being wider than the other. Fig. 6 shows stile\ II formed with groove I4l corresponding to groove I4 except that it is complementally formed to re#` ceive tongue 20H. Said friction element of member Ea is mounted in groove I4 on springs 26 and adjustably secured to the stile by bolts 25 as here. tofore described in connection with member E. The operation with respect to friction element or member E is similar to element E above described. except that by virtue of its tapered formation and the correspondingly shaped stile groove I4, upon initial movement of the sash the separation of the friction member from its groove is more easily effected. With this construction,

-2,se9,4oa f as with that described in connection with element E, when the sash is initially moved the friction element lilB tends to remain in place with relation to the window frame side jamb I, causing bolts25 to move upward in slots 23 and at the same time, by virtue of such tapered construction, theI contact engagement of said element with the groove is completely broken. This construction breaks any sticking between said contacting surfaces and renders raising of the sash easy. 'I'hen as the sash is lowered the above action is reversed, causing tongue 2lia to be wedged tightly between the sides of the groove Il* of the sash stile, so that when the sash is completely lowered a tight t is assured, thereby eliminating the possibility of air or rain leakage. From the above the operation of the sash would seem to be suiiiciently clear to .render further explanation unnecessary.

While I have shown my improved friction element and co-operating p-arts as applied to one side or stile of the sash, it is to be understood that lt may be similarly applied to the opposite side when desired.

It will be apparent that I have vdesigned a window sash structure including novel friction stri), or'element construction permitting use without interfering with sash weight, cords and the like and applicable withequal facility where such balances and the like are not used, equally adaptable to a single or multiple sash construction, manufacturable at a negligible cost, readily attachable to sashes already in use, rendering easy operation of the sash under varying weather conditions, `eiecting a weatherproof connection and eilicient for the purposes intended.

Although in practice ithas been found that the form of the invention illustrated in the accompanying drawing and referred to in the above description as the preferred embodiment is the most elcient and practical, yet realizing the conditions concurrent with the adoption of the invention will necessarily vary, I desire to emphasize that various minor changes in details of construction, proportion and arrangement of parts, may be resorted to within the scope of the appended claim without departing from or sacrificing any of the principles of this invention.

Having thus described my invention, what I desire protected by Letters Patent is as set forth in the following claim:

I'he combination with a window frame, a window sash adjustable therein and including a tapered groove stil member. a yieldable element positioned in said groove and including a tongue portion adapted for wedging engagement therein formed with a tapered front wall and with right angularly extending side walls terminating at their free ends in lateral flanges constituting frictional surfaces adapted to engage said frame, said front wall being formed with a longitudinal extending slot. and means in connection with said grooved stile member for yieldably supporting said element therein, 'said means including a bolt extending through the sash stile member and through said slot to permit relative movement between the stile and said yieldable element, and a spring mounted on said bolt intermediate said stile member and the front wall to force said l yieldable element into frictional engagement with yieldable element.

said frame, whereby in the elevation of the sash the latter moves prior to the movement of the BENJAMIN N EELY. 

